Mosquito season in Powhatan County, VA: when it starts and ends
Mosquito months in Powhatan County
In a normal year mosquito season in Powhatan County, VA starts around April 3 and ends around November 5, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Powhatan County, and when
- Start tipping out standing water weekly by March 20.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 5.
- 1 West Nile case since 2016 (last 2017): you should use repellent at dusk June to August, more so if over 60.
Powhatan County against the rest of VA
Powhatan County has the 71st longest season of 133 VA counties, at 216 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 56.7°F.
- Falls Church city: April 2 to November 4 (216 days, 0 WNV)
- Goochland County: April 3 to November 5 (216 days, 0 WNV)
- Lynchburg city: April 2 to November 3 (215 days, 1 WNV)
- Fauquier County: April 3 to November 3 (214 days, 1 WNV)
West Nile in Powhatan County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Powhatan County (1 neuroinvasive) across 1 year. The worst was 2017 with 1; the latest was 2017.
See how the dates are worked out, and when the season starts across the US.